一、连词的定义+分类（必考基础）连词是连接单词、短语、句子的虚词，本身无词性、无词义，不能单独作句子成分。中考常考分类：并列连词 + 从属连词（占95%考点），少量考并列连词的特殊用法二、并列连词（核心高频，必背！）👉 作用：连接并列关系的单词/短语/句子，前后成分地位平等。✅ 1. 表「转折」（考频最高）6- but 但是（强转折）：I like English, but I don't like math.- yet 然而，但是（可与but互换，语气稍弱，可放句末）：He is tired, yet he keeps working.- however 然而（副词，不是连词！中考易错点⚠️ 后必须加逗号，可放句首/句中/句末）：He is very rich. However, he is not happy.✅ 易错：though/although（虽然）和but不能连用！（中考单选题必出）例：正确✅ Though it rains, we go out. / It rains, but we go out.错误❌ Though it rains, but we go out.✅ 2. 表「并列」（简单，必考）- and 和，并且（顺承、并列）：I like reading and writing.- both...and... 两者都（连接主语，谓语用复数）：Both you and he are students.- not only...but also... 不仅…而且…（中考高频，就近原则）：Not only I but also she likes music.（谓语看she）- as well as 和，也（强调前者，谓语看前者）：He as well as his parents likes sports.✅ 3. 表「选择」- or 或者；否则（二选一/否定句表并列）▶ 选择：You can go by bus or by bike.▶ 否则（中考常考句型）：Hurry up, or you'll be late. (快点，否则你要迟到了)- either...or... 要么…要么…（二选一，就近原则）：Either you or I am right.- neither...nor... 既不…也不…（全否定，就近原则）：Neither he nor she likes swimming.✅ 4. 表「因果」（后接结果）- so 所以，因此✅ 易错：because（因为）和so不能连用！（和though/but同理，中考必坑⚠️）例：正确✅ Because I am ill, I don't go to school. / I am ill, so I don't go to school.错误❌ Because I am ill, so I don't go to school.三、从属连词（重中之重，完形/单选/写作全考）👉 作用：连接主句+从句，从句为从属地位，分「状语从句连词」「宾语从句连词」，中考状语从句连词是绝对重点！✅ 1. 引导「时间状语从句」的连词（考频TOP1）- when 当…时候（动作可长可短，主句从句动作可同时/先后）：I was reading when he came in.- while 当…时候（从句必须用进行时，动作是延续的）：I was reading while my mother was cooking.- as 一边…一边；随着：She sings as she walks.- until/till 直到…为止（✅ 核心句型：not...until... 直到…才… 中考必考）▶ I waited until he came back. 我一直等到他回来。▶ I didn't go to bed until I finished homework. 我直到写完作业才睡觉。- as soon as 一…就…（中考高频，时态：主将从现/主过从过）▶ I will call you as soon as I arrive. (主将从现)▶ He left as soon as he finished the work. (主过从过)✅ 2. 引导「原因状语从句」的连词- because 因为（回答why提问，表直接原因，语气最强）— 中考首选例：—Why are you late? —Because I missed the bus.- since/as 既然，由于（表显而易见的原因，语气弱，可放句首）例：Since you are free, let's go shopping.✅ 3. 引导「条件状语从句」的连词（必考，写作万能）✅ 核心规则：主将从现 — 主句用一般将来时，从句用一般现在时！（中考单选题必出，完形高频）- if 如果：If it doesn't rain tomorrow, we will go hiking.- unless 除非 = if...not（中考高频同义转换⚠️）例：You won't pass the exam unless you study hard. = You won't pass the exam if you don't study hard.- as long as 只要：As long as you try your best, you will succeed.✅ 4. 引导「让步状语从句」的连词- though/although 虽然，尽管（不能和but连用，前文易错点）例：Although he is young, he knows a lot.- even though/even if 即使，纵然（语气更强）：Even if it rains, we will go camping.✅ 5. 引导「目的/结果」状语从句- so that 以便，为了（表目的，从句常加can/may/will）：He studies hard so that he can go to a good high school.- so...that... 如此…以至于…（表结果，中考写作加分句型）：She is so kind that everyone likes her.- such...that... 如此…以至于…（such+名词短语）：It is such a beautiful flower that I want to buy it.✅ 6. 宾语从句的连词（结合宾语从句考，必背）- that 无词义，可省略：I think (that) he is right.- if/whether 是否（一般可互换，whether可接or not，if不可）：I don't know if/whether he will come.- 特殊疑问词（what/who/where/why） 保留本身词义：I don't know where he lives.四、中考连词「高频易错点」汇总（避坑=提分，重中之重⚠️）1. though/although 与 but 不能连用；because 与 so 不能连用。（每年必考1题）2. however是副词，不是连词，后必须加逗号；but是连词，直接接句子，无逗号。3. 就近原则的连词：not only...but also... / either...or... / neither...nor...4. 主将从现的连词：if / unless / as long as / as soon as (条件/时间状语从句)5. until 与 not...until... 区别：until表“一直到”，主句肯定；not...until表“直到…才”，主句否定。6. while 从句的谓语动词必须是延续性动词，且常用进行时。7. or 在否定句中表并列，代替肯定句的and：I don't like coffee or tea.（肯定句：I like coffee and tea.）五、中考连词「真题常考句型」（写作+单选都能用，背会拿分）1. not only...but also... 不仅…而且… → 写作加分句：Not only does it help us study, but also it makes us happy.2. as soon as 一…就… → I will tell you the news as soon as I get it.3. unless = if...not 除非 → We can't finish the work unless we work together.4. so...that... 如此…以至于 → He runs so fast that no one can catch up with him.5. not...until... 直到…才 → I didn't realize my mistake until my teacher told me.6. as long as 只要 → We can be good friends as long as we trust each other.六、连词专项练习题（中考真题改编，基础+易错，共15题，附答案）单项选择1. I like playing basketball, ___ I don't like playing football. (A. but B. and C. so)2. ___ he is very old, he still works hard. (A. Because B. Though C. But)3. Hurry up, ___ you'll miss the early bus. (A. and B. or C. so)4. I will go to the park ___ it doesn't rain tomorrow. (A. if B. unless C. though)5. Neither my father ___ my mother likes watching TV. (A. or B. nor C. and)6. He studies hard ___ he can pass the exam. (A. so that B. so...that C. because)7. I didn't go to bed ___ I finished my homework. (A. until B. when C. while)8. She is ___ a lovely girl ___ everyone loves her. (A. so; that B. such; that C. too; to)用所给连词填空1. Tom ___ his brother are good at English. (both...and...)2. ___ you ___ I am going to the party. (either...or...)3. He is very tired, ___ he still keeps working. (however/but)4. ___ you study hard, you will get good grades. (as long as/if)5. I don't know ___ he will come to the party or not. (if/whether)同义句转换1. You won't succeed if you don't work hard. → You won't succeed ___ you work hard.2. Though he is young, he can speak three languages. → He is young, ___ he can speak three languages.✅ 答案单选：1.A 2.B 3.B 4.A 5.B 6.A 7.A 8.B填空：1.both; and 2.Either; or 3.but 4.As long as/If 5.whether转换：1.unless 2.but— END —
